From patchwork Thu Jan 26 15:08:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Zijlstra X-Patchwork-Id: 13117343 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6286AC54EED for ; Thu, 26 Jan 2023 15:15:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232249AbjAZPPq (ORCPT ); Thu, 26 Jan 2023 10:15:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49344 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232085AbjAZPPl (ORCPT ); Thu, 26 Jan 2023 10:15:41 -0500 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1016C460B0; Thu, 26 Jan 2023 07:15:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Subject:Cc:To:From:Date:Message-ID: Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To:References; bh=eLqO1bA1ovJ6Tk3ye++iUoffczzuE9Es9NByP+7cFt8=; b=HfMc4m9Dr3GMuzid7iRyiLIvSz KcWcjJ+vXqxvH6l4bMC0kYM4TLvxE13XKgeiFngLSP/9uC2SCwPcg0yX6vwgoGJNssEBiRhX6b67J s2y50+62if5VJtHpjGNbnlB/vParYaoxFizVfooe0/2eCYroVVPDjeJiqh0oXqc7r910QLWj5uv29 epzcJo21rMRwpLOlWQoHp6XaQ//OS128hlgMfSFFOa/9TdMxMDklWWJ1VQVOael72XRin5mgKFJeE r6qDmiz1TuhnJXPRWVYEMnfT49mFKRH0Gplmij47FlLlEIhTfnv+FfdZ8O3J3kDgGqggjpjB/Gouw I2INHJng==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1pL3xH-002U1e-2W; Thu, 26 Jan 2023 15:14:23 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 26A49300577; Thu, 26 Jan 2023 16:14:53 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 064C52084C4A7; Thu, 26 Jan 2023 16:14:53 +0100 (CET) Message-ID: <20230126150829.087606759@infradead.org> User-Agent: quilt/0.66 Date: Thu, 26 Jan 2023 16:08:29 +0100 From: Peter Zijlstra To: mingo@kernel.org Cc: will@kernel.org, peterz@infradead.org, boqun.feng@gmail.com, mark.rutland@arm.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, seanjc@google.com, pbonzini@redhat.com, jgross@suse.com, srivatsa@csail.mit.edu, amakhalov@vmware.com, pv-drivers@vmware.com, wanpengli@tencent.com, vkuznets@redhat.com, boris.ostrovsky@oracle.com, rafael@kernel.org, daniel.lezcano@linaro.org, lpieralisi@kernel.org, frederic@kernel.org, paulmck@kernel.org, rostedt@goodmis.org, mhiramat@kernel.org, longman@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, linux-pm@vger.kernel.org, linux-trace-kernel@vger.kernel.org Subject: [PATCH v2 0/9] A few more cpuidle vs rcu fixes Precedence: bulk List-ID: X-Mailing-List: linux-trace-kernel@vger.kernel.org 0-day robot reported graph-tracing made the cpuidle-vs-rcu rework go splat. These patches appear to cure this, the ftrace selftest now runs to completion without spamming scary messages to dmesg. Since v1: - fixed recursive RCU splats - fixed psci thingies for arm (null) - improved the tracing WARN (rostedt) - fixed TRACE_PREEMPT_TOGGLE (null) --- arch/x86/include/asm/atomic64_32.h | 44 +++++++++++++++++++------------------- arch/x86/include/asm/atomic64_64.h | 36 +++++++++++++++---------------- arch/x86/include/asm/kvmclock.h | 2 +- arch/x86/include/asm/paravirt.h | 2 +- arch/x86/include/asm/pvclock.h | 3 ++- arch/x86/kernel/cpu/vmware.c | 2 +- arch/x86/kernel/kvmclock.c | 6 +++--- arch/x86/kernel/pvclock.c | 22 +++++++++++++------ arch/x86/kernel/tsc.c | 7 +++--- arch/x86/xen/time.c | 12 +++++++++-- drivers/cpuidle/cpuidle.c | 2 +- drivers/cpuidle/poll_state.c | 2 -- drivers/firmware/psci/psci.c | 31 ++++++++++++++++----------- include/linux/context_tracking.h | 27 +++++++++++++++++++++++ include/linux/math64.h | 4 ++-- include/linux/sched/clock.h | 8 +++---- include/linux/trace_recursion.h | 18 ++++++++++++++++ kernel/locking/lockdep.c | 3 +++ kernel/panic.c | 5 +++++ kernel/sched/clock.c | 27 +++++++++++++++++------ kernel/trace/trace_preemptirq.c | 6 ++---- lib/bug.c | 15 ++++++++++++- 22 files changed, 192 insertions(+), 92 deletions(-)